2012ApJ...750...95E


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.22CEST10:12:27

2012ApJ...750...95E - Astrophys. J., 750, 95 (2012/May-2)

Local tadpole galaxies.

ELMEGREEN D.M., ELMEGREEN B.G., SANCHEZ ALMEIDA J., MUNOZ-TUNON C., PUTKO J. and DEWBERRY J.

Abstract (from CDS):

Tadpole galaxies have a giant star-forming region at the end of an elongated intensity distribution. Here we use Sloan Digital Sky Survey data to determine the ages, masses, and surface densities of the heads and tails in 14 local tadpoles selected from the Kiso and Michigan surveys of UV-bright galaxies, and we compare them to tadpoles previously studied in the Hubble Ultra Deep Field. The young stellar mass in the head scales linearly with rest-frame galaxy luminosity, ranging from ∼105 M at galaxy absolute magnitude U=-13 mag to 109M at U=-20mag. The corresponding head surface density increases from several M/pc2 locally to 10-100 M/pc2 at high redshift, and the star formation rate (SFR) per unit area in the head increases from ∼0.01 M/yr/kpc2 locally to ∼1 M/yr/kpc2 at high z. These local values are normal for star-forming regions, and the increases with redshift are consistent with other cosmological SFRs, most likely reflecting an increase in gas abundance. The tails in the local sample look like bulge-free galaxy disks. Their photometric ages decrease from several Gyr to several hundred Myr with increasing z, and their surface densities are more constant than the surface densities of the heads. The far-outer intensity profiles in the local sample are symmetric and exponential. We suggest that most local tadpoles are bulge-free galaxy disks with lopsided star formation, perhaps from environmental effects such as ram pressure or disk impacts, or from a Jeans length comparable to half the disk size.

Abstract Copyright:

Journal keyword(s): galaxies: dwarf - galaxies: evolution - galaxies: fundamental parameters - galaxies: photometry - galaxies: structure

Nomenclature: Table 1: [EES2012] Kiso NNNN N=13 among (Nos 3193 to 8466).

Simbad objects: 30

goto Full paper

goto View the reference in ADS

Number of rows : 30

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 2MASX J00132741+3725465 G 00 13 27.4306487235 +37 25 45.632173454           ~ 2 0
2 MCG+01-05-030 H2G 01 44 41.3 +04 53 26 15.07 15.50 15.16 14.86 14.58 ~ 84 0
3 UM 417 EmO 02 19 30.236 -00 59 06.46 17.71 18.15 17.57 17.44 17.35 ~ 29 0
4 2MASX J02290846+2519297 G 02 29 08.462 +25 19 29.73   15.5       ~ 9 0
5 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1379 0
6 SBSG 0335-052B G 03 37 44.04 -05 02 40.2   16.77 16.65   16.79 ~ 155 1
7 UGCA 116 H2G 05 55 42.645 +03 23 32.23 10.74 11.68 11.46   11.82 ~ 508 0
8 Mrk 5 H2G 06 42 15.9 +75 37 40   17.0       ~ 109 0
9 NGC 2363A HII 07 28 42.8 +69 11 21           ~ 545 3
10 LEDA 25096 EmG 08 56 07.537 +39 52 08.92   16 16.68     ~ 10 0
11 Mrk 1416 G 09 20 56.0 +52 34 07   17.0       ~ 55 0
12 LEDA 27591 SBG 09 40 12.843 +29 35 30.30   16 16.08     ~ 42 0
13 Mrk 1418 G 09 40 27.0109496636 +48 20 15.457721241   13.5       ~ 64 0
14 LEDA 27886 QSO 09 44 17.101 +54 11 28.83   19.5       ~ 66 0
15 2MFGC 8801 G 11 16 08.124 +23 29 15.44           ~ 6 0
16 IC 2919 G 11 32 34.874 +14 11 22.25   15.5       ~ 10 0
17 LEDA 36252 EmG 11 41 07.496 +32 25 37.33   15.5       ~ 24 0
18 LEDA 37188 G 11 52 27.811 +22 11 34.72   16.5       ~ 5 0
19 IC 3224 G 12 22 36.079 +12 09 27.98   16       ~ 54 0
20 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6057 0
21 IC 3384 G 12 28 12.3 +25 05 28   16.5       ~ 7 0
22 SDSS J122942.96+104525.0 Sy2 12 29 42.9608284592 +10 45 24.917484479           ~ 88 0
23 IC 3418 LIN 12 29 43.919 +11 24 16.87   16.5       ~ 99 1
24 IC 3453 GiG 12 31 37.742 +14 51 35.23   15.2       ~ 84 0
25 IC 3460 EmG 12 31 50.385 +27 23 12.78   16       ~ 12 0
26 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1853 1
27 LEDA 86431 G 12 46 10.7834654150 +26 15 00.579391845   16.5       ~ 14 0
28 Mrk 59 AGN 12 59 00.288 +34 50 42.45           ~ 310 2
29 Mrk 296 GiG 16 03 26.525 +19 09 44.39   15.5       ~ 47 0
30 2MASX J23084512+2301533 G 23 08 45.125 +23 01 53.38   16       ~ 4 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2012ApJ...750...95E and select 'bookmark this link' or equivalent in the popup menu


2021.06.22-10:12:28

© Université de Strasbourg/CNRS

    • Contact